I noticed my syrian's ears are black around the edges. I did some searching, and ear mites seem to be most common response. They look almost exactly like this picture at the top of this article
, but the insides of his ears look pink like they normally do. There aren't any little black dots on the inside like in the pic.
We did have a VERY cold spell for a while, and my apartment isn't the warmest, so I'm wondering if frost bite is a thing that could happen to hamsters? In my searching I didn't really see anything saying yes.
Any help would be appreciated. He's eating and is active like normal.